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GAS CFESA TEST FINAL EXAM 2025/ 2026
COMPLETE EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS WITH RATIONALES (100%
CORRECT ANSWERS) /ALREADY GRADED
A+||LATEST EXAM!!!
1. The function of the compressor is : - Answer-B. to lower
the pressure in the evaporator so that the refrigerant
temperature is lowered below the temperature of the air in
the box .
2 . Forced air evaporator coils are commonly used
because : - Answer-A. they absorb more heat in less time .
3 . Evaporator A operates with a 5 ° TD and evaporator B
operates with a 15⁰ TD . - Answer-D. Box A operates with
higher humidity than box B
4 Whenever you re soldering refrigerant lines : - Answer-
D. B & C
5 . R404A must be charged into a system : - Answer-A. In
a liquid state
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6 . If an evaporator fan motor needs to be replaced it must
be replaced with : - Answer-C. Any motor with the exact
HP , speed , voltage , mounting and rotation
7 . The fan blade on an evaporator or condenser must be
positioned in the housing or shroud so that : - Answer-B.
The blade is mounted mid way into the evaporator housing
opening or fan shroud opening on a condenser .
8. Which of the following refrigerants is an interim choice
for a replacement for R - 12 in a system that had a leak in
the condenser and lost all of its refrigerant ? - Answer-C. R
- 409A
9 . Which refrigerant is an interim refrigerant choice for a
R502 system that had a major leak in the evaporator -
Answer-d . R408A
10 . When evacuating a refrigeration system what tool is
needed to ensure a good evacuation and to help inform
you if there is any moisture or leaks in the system : -
Answer-B. Micron gauge
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11 . Which refrigerant would you convert a walk in freezer
to if replacing the condensing unit on an R502 system : -
Answer-B. R404A
12 . Which phrase best describes the proper use for a
refrigerated box using a cap tube system ? - Answer-A.
Storage freezer
13 . Which is the best example of the definition of a
storage box ? - Answer-A. A freezer on which the door is
opened 8 times a day
14 . In order to maintain proper temperature under the
various loads , a cooler or freezer located on a front prep
line must be equipped with : - Answer-C. A thermal
expansion valve
15 . A cap tube is ineffective on most commercial
refrigeration systems because : - Answer-D. it cannot
respond to the refrigerant needs under heavy loads
GAS CFESA TEST FINAL EXAM 2025/ 2026
COMPLETE EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS WITH RATIONALES (100%
CORRECT ANSWERS) /ALREADY GRADED
A+||LATEST EXAM!!!
1. The function of the compressor is : - Answer-B. to lower
the pressure in the evaporator so that the refrigerant
temperature is lowered below the temperature of the air in
the box .
2 . Forced air evaporator coils are commonly used
because : - Answer-A. they absorb more heat in less time .
3 . Evaporator A operates with a 5 ° TD and evaporator B
operates with a 15⁰ TD . - Answer-D. Box A operates with
higher humidity than box B
4 Whenever you re soldering refrigerant lines : - Answer-
D. B & C
5 . R404A must be charged into a system : - Answer-A. In
a liquid state
,2|Page
6 . If an evaporator fan motor needs to be replaced it must
be replaced with : - Answer-C. Any motor with the exact
HP , speed , voltage , mounting and rotation
7 . The fan blade on an evaporator or condenser must be
positioned in the housing or shroud so that : - Answer-B.
The blade is mounted mid way into the evaporator housing
opening or fan shroud opening on a condenser .
8. Which of the following refrigerants is an interim choice
for a replacement for R - 12 in a system that had a leak in
the condenser and lost all of its refrigerant ? - Answer-C. R
- 409A
9 . Which refrigerant is an interim refrigerant choice for a
R502 system that had a major leak in the evaporator -
Answer-d . R408A
10 . When evacuating a refrigeration system what tool is
needed to ensure a good evacuation and to help inform
you if there is any moisture or leaks in the system : -
Answer-B. Micron gauge
, 3|Page
11 . Which refrigerant would you convert a walk in freezer
to if replacing the condensing unit on an R502 system : -
Answer-B. R404A
12 . Which phrase best describes the proper use for a
refrigerated box using a cap tube system ? - Answer-A.
Storage freezer
13 . Which is the best example of the definition of a
storage box ? - Answer-A. A freezer on which the door is
opened 8 times a day
14 . In order to maintain proper temperature under the
various loads , a cooler or freezer located on a front prep
line must be equipped with : - Answer-C. A thermal
expansion valve
15 . A cap tube is ineffective on most commercial
refrigeration systems because : - Answer-D. it cannot
respond to the refrigerant needs under heavy loads
